Deedths to john buee and james k



(No Model.) r

' W. HVRUISHPORTH.

flombined Runner and. Roller Skate.

No. 241,726. Patented May 17, T8817...

UNITED STATES PATENT OFFICE.

WILLIAM H. RUSHFORTH, oFoAMnnn, N. J., ASSIGNOR or. FonrY ONE-HUN- DREDTHS TO JOHN BURR AND JAMES K. s'rnnnr, or SAME PLACE.

COMBINED RUNNER AND ROLLER SKATE.

SPECIFICATION forming part of Letters Patent No. 241,726, dated May 17, 1881.

Application filed March 21,1831. (No model.)

To all whom it may concern: I

Be it knownlthat I, WILLIAM HENRY RUSH: FORTH, of Camden, New Jersey, have invented a GombinedRunner and Roller Skate, of which the following is a specification.

My invention relates to skates for use either upou ice or upon floors, and it is an improvement upon the combined runner and roller skate invented by me, application for patent for which was filed in the United States PatentDffice, February 26, 1881.

In the accompanying drawings, Figure 1 is a side elevation of my skate as an ice-runner; Figs. 2 and 4, side elevations respectively of the rear and front roller-trucks; Fig. 3, a front elevation of therear truck, section being supposed through the runneron theline a a of I Fig. 5. Fig. 5 is'a side elevation of my skate as a roller-skate, the trucks being showniin central sectional elevation. Fig. 6 is a rear elevation of the front truck, section being supposed on the line b b of Fig. 5. Fig. 7 is an enlarged transverse section through the one of the tightening-screws of the extensible bridgepiece of the skate of Fig. 1. Fig. 8 is a side elevation of a slightly-modified form of my skate as an ice-runner, and Fig. 9 a magnified transverse sectional detail through the same on the line cc of Fig. 8..

Similar letters of reference indicate corresponding parts. I

Generally stated,the features ofimprovement of my present device over my former one, above referred to, lie, first,in theapplication oflouta single central roller to one of the trucks, as opposed to the two rollers employed in my former device; and, secondly, insuch a construction of the bridge-piece or central portion of the runner aswill make said bridge-piece extensible in the direction of its length, so as to ac commodate the foot-pieces ot' the skate,whether used as an ice-runner or as aroller device, to various lengths of foot.

The construction of the runner, in all respects savein its function of being extensible,is identical with that of my former device. The

construction of the roller-trucks is also identical with that of the trucks of my former device, while their method of attachment to the ice-runner is also in all respects the same.

For the accurate comprehension of the above features reference is to he made to my former application.

In my preseutinvention, A is a single roller, Figs. 4., 5, and 6, having a rounded tread or periphery, B. It is affixed to an axle and the axle journaled iu the truck, as in my former invention. 7

By the application of the single roller my rollerskate becomes practically a three-wheel 6o device, in the use of which a sharper curve or turn maybe made than in the use of my former device.

I prefer to apply the single-roller truck to the front of the skate; but it can, of course, be applied to the rear insteadof to the front.

In the form shown in Figs. 1 and 5 the bridge-piece O is made in two parts, 1] and E, which dovetail within and about each other, as shown in Fig. 7. l

The part D, or the embracing portion, is shown as a part of the rear runner, while the tongue or embraced portion, E, is shown as a part of the front runner. This relationship may, of course, be reversed.

F are binding screws, the threaded portions of which pass freely through slots Gin the part D, and are threaded within the tongue E. By the tightening up these screws the dovetailed parts are boundtogether in whatever 8o relative positions they may have been placed, subject, however, to the limitation of lengthwise' movement imposed by the slots.

By the above construction, as will be readily understood, is provided a means for lengthening the runner of the skate and adjusting it fixedly to the desired length.

In Figs. 8 and 9 is shown a construction equivalent to that of Figs. 1 and 7, the extensible portion being in the form of a tongue or 0 groove, and the device being shown applied to an ice-runner skate constructed without a bridge-piece strictly as such.

Having thus described my invention, I claim and desire to secure by Letters Patent of the 5 United States 1. As a combined runner and roller skate, the combination of a double ice-runner formed with an extensible bridge-piece, with two separate roller-trucks, removably applied to the ICC runner, substantially as shown and described, In testimony whereof I have hereunto signed and for the purpose specified. my name this 12th day of March, 1881.

2. As acombined runner and roller skate the combination of a double ice-runner with WILLIAM HENRY RUSHFORTH' two separate roller-trucks, one of which is pro- In presence ofvided with two rollers and the other with but JOHN J OLLEY, J r., a single roller, as and. for the purposes speci- J. BONSALL TAYLOR. fied. 

